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I need help with the math problem having to do with a domain?

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Solve x - 2y = 12 if the domain is {-3, -1, 0, 2, 5}

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  1. domain => x values => {-3, -1, 0, 2, 5}

    Just replaced x values in equation x -2y =12 and you will find y values.

    x = -3 => -3 -2y = 12 => -2y = 15 => y = -15/2

    x = -1 => -1 -2y = 12 => -2y = 13 => y = -13/2

    x =  0 => 0  -2y = 12 => -2y = 12 => y = -6

    x =  2 => 2 -2y  = 12 => -2y = 10 => y = -5

    x =  5 => 5 -2y  = 12 => -2y =  7  => y = -7/2


  2. add 2y to both sides of equation.

    x=12 +2y

    now place each value of the domain in Y and solve for X

    since it is liner function graph and its a straight line.

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